Improvement in apparatus for the manufacture of lamp-black



2 Sheets sheeth 1.11. B'OTTE'NBER'EQ f Lamp-Bl ack.

Apparatus for the Manufacture o -N o.1 53,234.

' Patented July 21,1874.

Fig.2,

2Sh eets--Sheet2.

J. H. BOTTENBERG. Apparatus for the Manufacture of Lamp-Black.

N0 153,234. Pate-ntedluly 21,1874.

UNITED STATES PATENT OFFICE.

JACOB H. BOTTENBEBG, OF BAVENNA, OHIO, ASSIGNOR OF ONE-HALF HIS RIGHT TO ISAIAH LINTObI, OF SAME PLACE.

IMPROVEMENT IN APPARATUS FOR THE MANUFACTURE OF LAMP-BLACK.

Specification forming part of Letters Patent No. 153,234, dated July 21, 1874 application filed May 29, 1874.

To all whom it may concern Be it known that I, J AUOB ll. BOTTENBERG, of Ravenna, Portage county, Ohio, have invented certain Improvements in Machines for Manufacturing Carbon-Black, of which the following is a specification:

The nature and object of this invention is the manufacture and collection of carbon-black by burning gas in a revolving cylinder, from which the carbon black is automatically scraped off or gathered at each revolution of the cylinder.

The accompanying two sheets of drawings form part of this specification.

Figure 1 is a top view of the machine. Fig.

2 is an end view of the machine. Fig. 3 is a longitudinal section of the machine. Fig. at is a cross-section of the cylindero.

A is the frame of the machine. g and h are parts of the frame, in which the tube a rests.

The cylinder 0 is made of metal, and it may be of any other non-combustible material, and it is covered with cloth. It may be covered with any material which will easily absorb water. One end, w, of the cylinder is sustained by and, turns on, the tube 6, and the other end is supported by, and turns on, the small wheels t i i. One end of tube 0 is closed, and the other end open. In this tube, which passes lengthwise through the center of the cylinder, the gas-burners s s s are inserted. At the bottom of tube 6 is attached the scraper d, which scrapes off and holds the carbonblackdeposited by the burners s s s on the inside of cylinder 0. The bottom of the waterpipe 0 is perforated with holes, through which water falls on the revolving cylinder 0, to keep it cool. The vessel 1 at the bottom of the cylinder, and through which the cylinder turns,

also contains water to aid in keeping the cylinder from overheating. The driving pulley Z) is attached to the small end 20 of the cylinder.

The machine is operated as follows: The gas is permitted to enter the tube 0, from which it passes into the burners s s s, which are lighted. The cylinder 0 is slowly turned, and the carbon-black deposited on the surface of the inside of the cylinder is scraped off as the cylinder revolves by the stationary scraper d, in which it is allowed to accumulate, and at proper intervals is scraped or drawn out. \Vater is allowed to enter the water-pipe c, from which it passes through small holes in the pipe onto the cloth covering of the cylinder 0, to keep the cylinder from heating so as to injure the carbon-black deposited on it. The vessel 1 contains water for the same purpose.

Any convenient number of burners may be used, depending on the size of cylinder 0. As the cylinder revolves with a uniform motion, no .part of its surface is subjected to the heat of the burners except while passing the burners, and as the carbon-black is scraped off by the scraper cl at each revolution, it is not eX- posed to heat from the burners a second time; therefore the carbon-black is of a uniform quality, and uninjured by overheating after being deposited.

hen scraped off it accumulates in the bottom of the scraper d, which being below the burners the carbon-black is not then exposed to heat.

I claim as my inventionl. The combination of the burners s s s and scraper (l with the interior surface of the revolving cylinder 0, substantially as and for the purpose herein set forth.

2. The combination of the perforated waterpipe 0 with the revolving cylinder 0, substantially as and for the purpose herein set forth.

JACOB H. BOTTENBERG.

Witnesses GEORGE F. RoBINsoN, BRADFORD HOWLAND. 

